Finding the Fourth Proportional to 128,057,427.47, 192,085,498.77 and 31,013,132.45

Step by Step Solution

1. Step 1: Write the proportion equation
   128,057,427.47 : 192,085,498.77 = 31,013,132.45 : x
2. Step 2: Convert to fraction form
   128,057,427.47/192,085,498.77 = 31,013,132.45/x
3. Step 3: Cross multiply
   128,057,427.47x = 192,085,498.77 × 31,013,132.45
4. Step 4: Simplify right side
   128,057,427.47x = 5,957,173,015,078,322
5. Step 5: Solve for x
   x = 5,957,173,015,078,322/128,057,427.47
6. Step 6: Final answer
   x = 46,519,543.09